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Cyclic Behavior of Damage-controllable Steel Fiber-reinforced High-strength Concrete Frame-shear Wall Structures
Journal of Earthquake Engineering ( IF 2.6 ) Pub Date : 2021-11-18 , DOI: 10.1080/13632469.2021.1997841
Juan Liu 1 , Jianwei Zhang 1 , Wang Guo 1 , Xiangyu Li 1 , Wanlin Cao 1
Affiliation  

ABSTRACT

Quasi-static tests of two 2-story structures reinforced with HRB 600 MPa reinforcement and ultrahigh-strength (UHS) reinforcement were conducted. These two structures showed an evident post-yield stiffness, which can be repaired before a large drift ratio of 2%. The structure with the UHS reinforcement had stable floor stiffness ratio, which can avoid the deformation and energy consumption concentration in the lower floors. The reinforcement diagonal bracing can effectively limit the inclined crack development, and reduce the shear strength degradation of the shear wall under large lateral deformation. According to the structure failure mechanism, an ideal load-deformation response was proposed.



中文翻译:

损伤可控钢纤维高强混凝土框架-剪力墙结构的循环性能

摘要

对用 HRB 600 MPa 钢筋和超高强度 (UHS) 钢筋加固的两个 2 层结构进行了准静态试验。这两个结构表现出明显的屈服后刚度,可以在 2% 的大漂移率之前修复。UHS加固结构具有稳定的楼板刚度比,可以避免低层楼板的变形和能耗集中。钢筋斜撑可有效限制斜裂纹的发展,减少剪力墙在大侧向变形下的抗剪强度退化。根据结构失效机理,提出了理想的载荷-变形响应。

更新日期:2021-11-18
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